Miller was educated at Roanoke College, Virginia; Lutheran The­o­lo­gi­cal Sem­in­a­ry, Phil­a­del­phia, Penn­syl­van­ia; and Chicago Lutheran The­o­lo­gi­cal Sem­in­a­ry. He served as pastor of College Lutheran Church, Salem, Vir­gin­ia (1888–96); Holy Trinity Lutheran Church, New York City (1896–1908); St. John’s Lutheran Church, Charleston, South Carolina (1908–12); and St. Mark’s Lutheran Church, Phil­a­del­phia, Penn­syl­van­ia (1912–17). He also served on the board of the Ministerium of Penn­syl­van­ia (1914–17), was a member of the Quill Club in New York City. His works in­clude:

The Way of the Cross: A Series of Meditations on the History of the Passion of Our Lord, 1898

The Perfect Prayer and Its Lessons: A Devotional Study of the Lord’s Prayer, 1902